高校化学工程学报2011，Vol.25Issue(1)：149-154,6.
搅拌式反应器生物脱硫过程中DBT的传质分析
Mass Transfer Analysis of DBT during Biodesulfurization in a Stirred Reactor
张文娟 1王妙冬 1陈晗 1李伟1
作者信息
- 1. 浙江大学,环境工程研究所,浙江,杭州,310027
- 折叠
摘要
Abstract
A model used to estimate the mass transfer of debenzothiophene (DBT) during its biodesulfurization by Microbacterium strain ZD-M2 in a stirrer reactor was proposed. The effects of the factors affecting the DBT mass transfer rate, such as the composition and the volume fraction of organic phase,temperature, cell concentration and stirrer speed, were studied. The results show that, among the above factors,the stirrer speed determines the oil-drop diameter directly and appears to be the most important factor governing the DBT mass transfer rate. Through the comparison between the mass transfer rate and the biodesulfurization rate,the control step of the biodesulfurization process was investigated. It was found that, at low stirrer speed and low DBT concentration, the DBT mass transfer rate affects the biodesulfurization process more, while under high DBT concentration and faster stirrer speed, the DBT mass transfer rate is much higher than the DBT desulfurization rate,and the rate of the microbial desulfurization process determines the overall desulfurization rate.关键词
二苯并噻吩/生物脱硫/传质/搅拌式反应器Key words
DBT/biodesulfurization/mass transfer/stirred reactor分类
能源科技引用本文复制引用
张文娟,王妙冬,陈晗,李伟..搅拌式反应器生物脱硫过程中DBT的传质分析[J].高校化学工程学报,2011,25(1):149-154,6.
